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#!/bin/bash
# test btrfstune options that enable filesystem features
source $TOP/tests/common
check_prereq btrfs-debug-tree
check_prereq btrfs-show-super
check_prereq mkfs.btrfs
setup_root_helper
prepare_test_dev
if [ -z $TEST_MNT ];then
echo " [NOTRUN] extent tree rebuild, need TEST_MNT variant"
exit 0
fi
# test whether fsck can rebuild a corrupted extent tree
# parameters:
# - option for mkfs.btrfs -O, empty for defaults
# - option for btrfstune
# - string representing the feature in btrfs-show-super dump
test_feature()
{
local mkfsfeatures
local tuneopt
local sbflag
mkfsfeatures=${1:+-O ^$1}
tuneopt="$2"
sbflag="$3"
run_check $SUDO_HELPER $TOP/mkfs.btrfs -f $mkfsfeatures $TEST_DEV
if run_check_stdout $TOP/btrfs-show-super $TEST_DEV | \
grep -q "$sbflag"; then
_fail "FAIL: feature $sbflag must not be set on the base image"
fi
run_check $TOP/btrfstune $tuneopt $TEST_DEV
if ! run_check_stdout $TOP/btrfs-show-super $TEST_DEV | \
grep -q "$sbflag"; then
_fail "FAIL: feature $sbflag not set"
fi
run_check $SUDO_HELPER $TOP/btrfs check $TEST_DEV
}
test_feature extref -r EXTENDED_IREF
test_feature skinny-metadata -x SKINNY_METADATA
test_feature no-holes -n NO_HOLES
test_feature '' '-S 1' SEEDING
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